UNIVERSITY OF CALIFORNIA PUBLICATIONS 

 Bulletin of the Department of Geology 

 Vol. 3, No. 8, pp. 219-229. ANDREW C. LAWSON, Editor 



PLUMASITE 



AN OLIGOCLASE=CORUNDUM ROCK 



NEAR SPANISH PEAK, CALIFORNIA 



ANDREW C. LAWSON 



BERKELEY 

 THE UNIVERSITY PRESS 



APRIL, 1903 

 PRICE 10 CENTS 



1 



